KR910007685Y1 - Ventillation valve device for blood pressure meter - Google Patents

Abstract

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Description

Rapid exhaust device of electronic sphygmomanometer

1 is an assembled perspective view according to the present invention.

2 is an operating state diagram according to the present invention, (a) is a state before operation, (b) is a state during operation.

3 is a cross-sectional view taken along the line A-A of FIG. 1 showing the operating state of the opening and closing conversion means.

4 is a structural diagram of an electronic blood pressure monitor according to a conventional design.

5 is a perspective view of an electronic blood pressure meter.

* Explanation of symbols for main parts of the drawings

2: motor 3: worm

4: worm gear 5: housing

5a: guide groove 6: slider

7, 7 ', 7 ": support plate 8, 8': elastic member

9: stop bar 10: shaft member

11: opening and closing member 11a: pressing surface

X: Stop

The present invention relates to a rapid exhaust device of an electronic sphygmomanometer which pressurizes and depressurizes the air pressure in the cuff by forward and reverse rotation of the driving unit. In particular, the rapid exhaust structure is improved to simplify the structure of the device and to make the appearance compact. The present invention relates to a rapid exhaust device of an electronic sphygmomanometer that can be compactized.

In the conventional case, the structure of the electronic blood pressure gauge is generally divided into the automatic pressing means (A) and the rapid exhaust means (B) as shown in Figure 4, where the rapid exhaust means (B) by applying a solenoid In addition to the complexity of the piping, the outer edge of the product is increased, and a separate power source is required to operate the solenoid.

Therefore, in order to solve the above-mentioned drawbacks, the present invention comprises an automatic pressure means, an opening / closing conversion means and an operation conversion means in an electronic sphygmomanometer as a single assembly, while the slider is moved forward or backward by forward and reverse rotation of the motor. The construction and effect will be described in detail with reference to the accompanying drawings, which are designed to simplify the structure of the device and to make the appearance compact by opening and closing the opening and closing member.

In the overall structure of the electronic sphygmomanometer (1), the operating conversion means is fixed to the worm (3) on the shaft of the motor (2) so as to flow in the guide groove (5a) of the housing (5) via the worm gear (4) The slider 6 is connected to the slider 6 forward and backward according to the forward and reverse rotation of the motor 2, and on one side of the slider 6, the elastic member 8 is provided on the support pin 7. The stopper X is provided by engaging the inserted stop bar 9 to control the backward movement of the slider 6, while the support plates 7 'and 7 "are opposed to the housing 5 at a predetermined position. The opening and closing means for opening and closing means 11 having a pressing surface 11a which is in contact with the slider 6 through the shaft member 10 is installed so as to be movable so that the exhaust port 12 can be opened and closed as necessary. And, the end of the housing 5 and the opening and closing member 11 is configured by connecting the elastic member (8 '), reference numeral 13 is a pump drive unit, 14 is a pressure sensor The exhaust hole, 15 is a cuff, and 16 is a slow exhaust hole.

Referring to the effect of the present invention configured as described above are as follows.

When the motor 2, which is the power supply means, is rotated forward to measure the blood pressure of the subject using the electronic sphygmomanometer 1, the pump driving unit 13, which is an automatic pressure means, is operated, and the pressure sensor exhaust hole of the housing 5 Air is pressurized through 14 to press the discharge cuff 15 to a predetermined pressure set point.

When the pressurization of the cuff 15 is completed by the above-described operation, the motor 2 is stopped by the output signal of the microcomputer, and at the same time, the pressure in the cuff 15 is gradually decompressed through the unscheduled exhaust hole 16, thereby reducing the pressure of the examinee. The blood pressure is measured, and a certain amount of pressure remains in the cuff 15 even after the blood pressure measurement is completed.

Here, when the motor 2 is reversely rotated to completely exhaust the pressure remaining in the cuff 15 as described above, the worm gear 4 is rotated as the worm 3 inserted into the motor 2 shaft is rotated. As it engages in this, it moves in the direction of the arrow R, so that the operation conversion means mounted on the guide groove 5a of the housing 5 and supported by the stopper X has a slider 6 along the guide groove 5a on the right side of the drawing ( The pressing surface 11a of the opening / closing member 11, which is an opening / closing conversion means installed on the support plates 7 'and 7 "via the shaft member 10, and the second surface (b) of FIG. Are contacted together.

As described above, as the inclined surface and the pressing surface 11a of the slider 6 come into contact with each other, one side of the opening / closing member 11 moves downward about the shaft member 10, that is, the virtual line in FIG. 3. As shown in FIG. 3, the exhaust port 12 is opened while being moved downward in the direction of the arrow L and the other side is moved upward in the direction of the arrow H while expanding the elastic member 8 ′. Therefore, the residual pressure in the cuff 15 is rapidly discharged through this. At the same time, the above-described operation is completed by the microcomputer.

As described above, when the examinee wishes to perform re-measurement in the state where the slider 6 is advanced, the slider 6 holding the opening / closing member 11 in the reverse order of the operation as the motor 2 is rotated forward. Since the reversing (in home position) through the worm (3) and the worm gear (4), the opening and closing member 11 is closed by the tension force of the elastic member (8 ') while closing the exhaust port (12) and at the same time the pump drive unit 13 ) Is operated to pressurize the cuff 15 to repeat the operation as described above.

Here, in order to prevent the worm 3 and the worm gear 4 from being separated from each other in the backward process of the slider 6, a stopper rod having an elastic member 8 inserted into the support plate 7 on the slider 6 ( A stop (X) formed by combining 9) is installed.

As can be seen from the above, the present invention is an electronic sphygmomanometer, the pump driving unit 13 which is an automatic pressure means, the opening and closing member 11 which is an opening / closing conversion means, the slider 6 and the worm 3 which is an operation conversion means, and the worm gear 14 ), And the opening and closing member 11 is opened and closed from the exhaust port 12 as the slider 6 moves forward or backward by the forward and reverse rotation of the motor 2, thereby rapidly discharging the residual pressure in the cuff. In the rapid exhaust device of the conventional electronic blood pressure monitor, it is a very practical design that can solve the weaknesses such as the complexity of the pipe structure, which increases the appearance of the product and the need for a separate power source, which was a factor of the defect caused by the use of the solenoid as the rapid exhaust means.

Claims (4)

One motor as a power supply means and a worm and a worm gear as power transmission means are connected to the motor and moved upward by the control of the operation conversion means and the operation conversion means which are advanced back and forth according to the forward and reverse rotation of the motor. It is composed of opening and closing conversion means for opening and closing the exhaust port 12, the rapid exhaust device of the electronic sphygmomanometer, characterized in that to be able to rapidly exhaust the pressure remaining in the cuff after the completion of blood pressure measurement. 2. The actuating converting means according to claim 1, wherein the actuating converting means comprises a slider (6) which is movably installed in the guide groove (5a) of the housing (5) via the worm (3) and the worm gear (4) on the shaft of the motor (2). Rapid exhaust device of an electronic blood pressure monitor comprising. According to claim 1, The switching means for opening and closing the opening and closing member 11 provided with a pressing surface (11a) via the shaft member 10 to the support plate (7 ') (7 ") and the opening and closing member (11) and the housing (5) is a rapid exhaust device of the electronic blood pressure gauge comprising the elastic member (8) is configured to open and close the exhaust port as needed. According to claim 1, one side of the slider (6) of the operation conversion means is provided with a stopper (X) by engaging the stop bar (9) into which the elastic member (8) is inserted into the support plate (7) to reverse the slider. Rapid exhaust device of the electronic blood pressure gauge including the control.